Lior Arbel (@liorarbel) profile picture

Lior Arbel

@liorarbel

Cyber security executive, leader, entrepreneur

 United Kingdom
Joined October 2009
  • Tweets330
  • Following51
  • Followers91
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Photo by Lior Arbel (@liorarbel)Photo by Lior Arbel (@liorarbel)Photo by Lior Arbel (@liorarbel)Photo by Lior Arbel (@liorarbel)Photo by Lior Arbel (@liorarbel)Photo by Lior Arbel (@liorarbel)
Check out my latest article: When Your Identity Fails, Everyone Pays linkedin.com/pulse/when-your… via @LinkedIn
When Your Identity Fails, Everyone Pays

When Your Identity Fails, Everyone Pays

15 Oct 2026 · Lior Arbel, MBA, CISSP In July 2025, the chairman of Marks & Spencer sat in front of a parliamentary committee and explained how one of Britain's best-known retailers was brought to a...

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Check out my latest article: Legal and Security Are Solving the Same Problem. Governance Is What's Missing. linkedin.com/pulse/legal-sec… via @LinkedIn
Legal and Security Are Solving the Same Problem. Governance Is What's Missing.

Legal and Security Are Solving the Same Problem. Governance Is What's Missing.

Picture a company three months after signing off on a new data security tool. The purchase decision is done — budget approved, contract signed, rollout underway.

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Check out my latest article: The Personal Data You Never Collected linkedin.com/pulse/personal-… via @LinkedIn

The Personal Data You Never Collected

Most of the privacy commentary since September has been about a narrowing. On 4 September 2025, the Court of Justice of the European Union issued its ruling in European Data Protection Supervisor v...

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Check out my latest article: The Regulator that couldn't regulate itself linkedin.com/pulse/regulator…
The Regulator That Couldn't Regulate Itself

The Regulator That Couldn't Regulate Itself

The European Commission wrote the rulebook on data protection. Then it lost an AWS key, 350GB of data, and any claim to moral authority - twice in eight weeks.

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Check out my latest article: Your Data Has No Control Tower linkedin.com/pulse/your-data… via @LinkedIn
Your Data Has No Control Tower

Your Data Has No Control Tower

Why AI-Era Data Security Needs Air Traffic Control, Not Another Firewall Lior Arbel Cyera In 1992, I began my service as an air traffic controller in the Israeli Air Force. I served in a control...

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Check out my latest article: We Already Know How to Solve This linkedin.com/pulse/we-alread… via @LinkedIn
We Already Know How to Solve This

We Already Know How to Solve This

What the History of the Seatbelt Teaches Us About Data Protection in the Age of AI By Lior Arbel In 1959, Volvo engineer Nils Bohlin invented the three-point seatbelt. It was elegant, effective, and...

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Check out my latest article: The Unsinkable AI Budget: What the Titanic Can Teach Us About $6 Trillion in IT Spending linkedin.com/pulse/unsinkabl… via @LinkedIn
The Unsinkable AI Budget: What the Titanic Can Teach Us About $6 Trillion in IT Spending

The Unsinkable AI Budget: What the Titanic Can Teach Us About $6 Trillion in IT Spending

By Lior Arbel The ship that couldn’t sink didn’t hit an iceberg it couldn’t see. It hit one it chose not to look for.

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Check out my latest article: The Sorcerer's Apprentice Problem: Why AI Is Multiplying Your Data Risks Faster Than You Can Contain Them linkedin.com/pulse/sorcerers… via @LinkedIn
The Sorcerer's Apprentice Problem: Why AI Is Multiplying Your Data Risks Faster Than You Can...

The Sorcerer's Apprentice Problem: Why AI Is Multiplying Your Data Risks Faster Than You Can...

You automated the doing. You forgot to automate the understanding.

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Check out my latest article: The Cheshire Cat Problem: Why Your Data Program Is Lost in Wonderland linkedin.com/pulse/cheshire-… via @LinkedIn
The Cheshire Cat Problem: Why Your Data Program Is Lost in Wonderland

The Cheshire Cat Problem: Why Your Data Program Is Lost in Wonderland

Most data initiatives fail not because of technology, but because nobody bothered to define success. "Would you tell me, please, which way I ought to go from here?" "That depends a good deal on where...

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Check out my latest article: The Telescope Problem: Why Your Data Strategy Is Failing Despite All That Coverage linkedin.com/pulse/telescope… via @LinkedIn

The Telescope Problem: Why Your Data Strategy Is Failing Despite All That Coverage

There's a fundamental misunderstanding driving most enterprise data strategies in 2026, and it's costing organisations billions in failed AI initiatives. The assumption is simple: more data sources...

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Check out my latest article: AI Impact Assessments Are Exposing Organisational Denial linkedin.com/pulse/ai-impact… via @LinkedIn
AI Impact Assessments Are Exposing Organisational Denial

AI Impact Assessments Are Exposing Organisational Denial

Most organisations never understood their data processing. They did not need to.

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Check out my latest article: 4 Hard Truths About AI Safety in the EU AI Act Era linkedin.com/pulse/4-hard-tr… via @LinkedIn
4 Hard Truths About AI Safety in the EU AI Act Era

4 Hard Truths About AI Safety in the EU AI Act Era

Everyone is talking about AI safety. We hear a constant stream of discussion around principles, red-teaming, and the formation of new oversight committees.

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Check out my latest article: AI Does Not Need All Your Data. It Needs the Right Data. linkedin.com/pulse/ai-does-n… via @LinkedIn

AI Does Not Need All Your Data. It Needs the Right Data.

The problem is not that AI systems use data. The problem is that organizations cannot articulate what a given system actually requires.

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Check out my latest article: The $2.1 Billion Signal: Privacy Rules Are Helping Ransomware, Not Stopping It linkedin.com/pulse/21-billio… via @LinkedIn
The $2.1 Billion Signal: Privacy Rules Are Helping Ransomware, Not Stopping It

The $2.1 Billion Signal: Privacy Rules Are Helping Ransomware, Not Stopping It

A FinCEN review shows that our governance models are shaping the business strategy of ransomware groups By Lior Arbel, Cybersecurity Executive FinCEN collected 7,395 ransomware-related Bank Secrecy...

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Check out my latest article: Resilience Begins with Data: Lessons from Retail Breaches linkedin.com/pulse/resilienc… via @LinkedIn
Resilience Begins with Data: Lessons from Retail Breaches

Resilience Begins with Data: Lessons from Retail Breaches

Introduction: Retail Breaches Highlight a Data-Resilience Link High-profile cyberattacks on UK retailers Marks & Spencer (M&S) and the Co-op have underscored the critical link between cyber resilie...

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Check out my latest article: AI Revolution in Data Classification: Moving Beyond Opinion to Context linkedin.com/pulse/ai-revolu… via @LinkedIn
AI Revolution in Data Classification: Moving Beyond Opinion to Context

AI Revolution in Data Classification: Moving Beyond Opinion to Context

This is a slide I created almost 20 years ago, and it remains remarkably relevant for companies that still rely on people to classify data. The challenges depicted using the classic Western film "The...

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UN Women - I will not stay silent. Every woman's life is equally precious. This is- UNbelievable UNjustified UNforgivable Sign the petition and be the voice of the women who were brutally raped, abused, burned alive, murdered, and kidnapped. metoo-unlessurajew.com
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#cybersecurity #compliance #encoredeployment #attacksurfacemanagement #dataprotection #ciso #cio...

#cybersecurity #compliance #encoredeployment #attacksurfacemanagement #dataprotection #ciso #cio...

🔍 📊 Encore ASM Deployment Review: Boosting Security & Reducing Attack Surfaces! 🚀 🌐 We recently conducted a detailed review, choosing a representative sample of 15 clients from our growing...

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#ciso #cybersecurity #encoreasm #riskmanagement #informationsecurity #newciso #productcapabilities...

#ciso #cybersecurity #encoreasm #riskmanagement #informationsecurity #newciso #productcapabilities...

🎯 Introducing Encore ASM: The Ultimate Solution for New CISOs! 🚀 As a newly appointed CISO, you face numerous challenges, from understanding the existing security landscape to ensuring compliance...

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